Typically only available during weekend brunch, the River North country bar and BBQ joint Bub City will be opening its doors at 10 a.m. on the Fourth to sate Chicago’s collective thirst for Bloody Marys. In addition, the restaurant will donate a portion of all proceeds from the day to USO Illinois, and all service men and women will enjoy exclusive prices on food. 435 N. Clark St., 312-610-4200